QCOW2 (QEMU Copy on Write) is a virtual disk image format used by QEMU, a popular open-source virtualization platform. QCOW2 files are widely used in virtualization environments, such as OpenStack, because they offer a range of benefits, including compression, encryption, and copy-on-write functionality.
Optionally, you can optimize the QCOW2 file using QEMU's qemu-img command: convert cisco bin to qcow2
Now, you can use QEMU's qemu-img command to convert the raw disk image to QCOW2 format: QCOW2 (QEMU Copy on Write) is a virtual